Perforating mechanism.



'1. H.IPIH -LINGS. PERFORMING MECHANISM.

. I APPL'ICfXTlON FILED JULY I2. 1915' 1,1?5,986.

, Patente Mar.'21,191&

3 SHEETSSHEET I.

r 5 W/m m i 1 WWW W07 6% WM (Q 47m J. H. PILLINGS. PERFORATING MECHANISM.

APPLICATION FILED JULY I2. I9I5.

Patented Mar. '21, 1916.

- 3 SHEETSSHEET 2.

JZ/mzzz 5 J. H. PlLLiNGS.

' PERFORATING MECHANISM.

APPllCAT'lON FILED JULY 12, 1915.

Patented Mar. 21, 1911 3 SHEETS-SHEET 3.

means, substantially as shown, by which the-- ED i me v earner carton JOHN H. PILLINGS, or HAMILTON, orrro, ASSIGNOR TO THE NATIONAL AUTOMATIC TYPEWRITER COMPANY, OF. HAMILTON, OHIO, A. CORPORATION OF OHIO.

PERFORATING MECHANISM.

perforations to be so made in a strip of paper, that said strip may subsequently be used to control the automatic operation of a 'typewriting machine or any other analogous machine. j

The invention has mainly to do with the paper strip is held against movement while it is being perforated, and is fed forward a proper distance-after each perforation, to the position it should occupy to receive the next perforation. i

The invention consists in the construction and combination of parts shown in the drawings and hereinafter described and pointed out definitely in the appended claims.

In the drawings, Figure 1 is aside eleva tion partly. broken away of a perforating machine which embodies the present invention; Fig. 2' is a plan view of said machine with the middle part of-themachine broken.

out; Figs. 3, 4, 5 and 6 are side elevations of the mechanism for moving and preventing the movement of the paper feeding roll, and they show these parts in various relative positions in which they may be at different times as hereinafter set forth. Fig. 7 is a side elevation of the locking bolt,'a part of said bolt and its supporting guideway being sectioned; Fig. 8 is a plan view of said looking bolt detached; Fig. 9 is an inside view 'of the pawl 15; Fig. 10 is a view of said pawl from the front'of the machine, and Fig. 11 is a plan view of the paper strip which the machine is intended to perforate.

In the machine is a transversely extended horizontal die plate 1 having a transverse row of vertical perforations 1*. Just above it is a punch guide bar 2 in wh-ich'are vertical perforations 2 which are alined with the perforations in'the guide plate. There is a narrow space between said die plate and punch guide bar through which the paper strip 3 to be perforatedmay pass. Behind thesetwo perforated bars'is a feed roller v Specification of Letters Patent.

' chine.

This has, near each end, two circumferential rows of-radiallyprojecting pins or teeth, which are provided in order that they may engage .in the spaced holes 3. Two rows of such holes are formedin the paper strip adjacent each edge thereof before it is in readiness to go through the described perforating machine, as shown in Fig. 11.

There are a large number of vertically movable punches 4,-as many as there are distinctive operations of thetwpewriter'or other machines to be controlled by the fin- Patented Mar. 21, 1916.. Application filed July 12, 1915. Seria1No,39,217.

ished perforated strip. One of these punches goes down through each hole 2* in the guide bar, and normally occupies a position such that its lower end does not project below said guide bar. Associated with each of these punches is a key lever 5 pivoted at its rear end, and having a key piece 5 at its front end. These key levers are thin strips of metal. The upper end of each punch is formed so as to straddle the associated key lever, to which it is connected by a pin 4?. When, therefore, any key piece is depressed, the key lever, of which said key piece is a part, will push down the associated punch and cause it to punch a hole in that part of the paper which is directly below it.

10 represents a bell crank space lever. There are two of these levers, one pivoted to each side member of the frame of the ma- One or both of them may be provided with a key piece 10. Atransversely extended rod 12 passes between and is connected withsaid key levers,said rod passing through slots 25 in the two side frame members 25 of the machine and occupying a position below and in substantial contact with every one of the key levers 5.

On one side frame member of. the machine,'a locking bolt 14 is mounted, so that it can slide horizontally in a suitable guideway, and it is under the influence of a spring 19 tending to push it toward a toothed wheel weight 15, both to return it to anormal position. Of course, both the spring and weight are not necessary, although both maybe used. A pawl 15 is pivoted to the rear end of the horizontal arm of lever 16, and extends upward therefrom, its upper end being just in 3 front of and close to said toothed wheel. It is normally under the influence of a spring 21, which swings it toward said toothed wheel, and as far as it can go when stopped by engaging with a fixed stop piece 20. The part of this pawl above the tooth 15 goes close to the bolt 14. Fixed to the bolt and. projecting therefrom toward the pawl is an inclined lug 14 Fixed to the opposed face of the pawl and projecting therefrom toward the bolt is a complementarily inclined lug 15. These extend past one another, and may engage as the pawl goes up and down.

The parts concerned in looking and in turning the feed roll 'are shown in their normal position in Fig. 5.. When the operator depresseseither. space key 10 or any of the keylevers 5, the pawl carrying lever 16 will be rocked to the position shown in Fig.

. 3. In moving to this position the pawl is drawn down and in its downward movement the inclined lug l5 thereon will engage the inclined lug 14. on the bolt, and thereby the pawl will be caused to move away from the toothed wheel, as shown in Fig. 6. When the lug 15 passes below lug 14, which happens when the lever 16 is at the endof its stroke produced as stated, the pawl, actuated by its spring 21, will fly to the position shown in Fig. 3. When the operator allows the depressed key lever 5 to be moved to its normal position by its associated spring 5*.

and this, of course, is after a hole has been punched in the paper, the spring 17 or weight 18, or both,--will .return the pawl carrying lever 16 to its normal position andin moving to that position it will cause the pawl to move upward. In the first part of its upward movement the upper surface of the lug 15 will engage the under surface of the lug l4, and by the engagement of these two, the bolt 14. will first be withdrawn from its engagement with the toothed wheel, as

shown in Fig. Immediately following the disengagement of the bolt the tooth 15 of the pawlv will come into engagement with one of the teeth 7 of the wheel 7, and will cause the wheel to turn, and this will continue until the lug 15 passes above lug 143-, whereupon the bolt 14 flies into'engagement with the toothed wheel, and the parts come to rest in the position shown in Fig. 5.

From'the-foregoing it appears clearly that while the hole is being punched in the paper, the feed roll is locked -against movement, and thatafter the hole has been punched the lock bolt is withdrawn and the feed roll moved forward the desired distance, carryand means operable by each punch operating leverfor first withdrawing said locking means and then imparting a limited turning movement to said feed roll.

- 12. In a perforating machine, the combination of a row of punches, levers for severally operating said punches, a paper feeding roll, a toothed wheel fixed to said roll, a spring actuated locking bolt engaging said toothed wheel to'prevent it from turning, a pawl carrying lever, means operable byeach key lever for rocking said pawl lever in one direction, a spring for rocking it in the other direction, a pawl pivoted to said pawl lever adapted to engage teeth on said toothed wheel, and overlapping inclined lugs carried respectively by said pawl and locking bolt whereby during its downward movement the pawl is swung away from said toothed wheel and during its upward movement the pawl is swung toward said toothed wheel and the locking bolt is moved out, of engagement of pivots, a bar connecting said levers and passing beneath and lying in substantial contact with all of said-key levers, a spring actuated locking bolt for engaging said toothed wheel, a pawl lever having one arm which is i-n-contact with an arm of one of said feed levers, a pawl pivotally'connected cent said toothed wheel, a pawl actuating spring, a stop block limiting the spring-induced movement of the pawl, and a springfor actuating said pawl lever,said bolt and pawl being provided. with overlapping complementarilyinclined lugs which project from their proximate faces and are located in such positions that said inclinedlugs engage as the pawl is' moving u and again as,

it is moving down, substantially as and for the purpose specified.

In testimony whereof, I hereunto alfix my signature in the presence of two witnesses.

JOHN 'PILLINGS.

Witnesses: A. F, KIEFER,

A. H. LQUIS.

-to said pawl lever and extending up adja- 

